As you have suggested your site, there is nothing more you can do. Just move on rather than fret over it. It will get reviewed one day; probably sometime between today and the next few years.
It is a valuable directory, respected by the search engines because candidates are review by human reviewer volunteers, and is renowned for having a large backlog that can take months for a site to be reviewed.
There has been talk about possible corruption of some editors, if you receive a business proposal email regarding the category you applied to, it may be a veiled bribe request.
I do not know what languages IMDB allows.
You have an English interface but most of the content remains non-english, that may be a grounds for rejection, some site scripts auto switch default language based on the IP address and last setting cookied.
Same issue is here. I have submitted following url (http://ebusiness.netsmartz.net ) to dmoz it's page rank is 3 but still not getting any approval yet from dmoz :(
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With free things, i guess you should have low expectations. There are other decent directories though not free that you are sure to get a response for your submission in no time. Yahoo, business or botw.
I tried suggestion in different categories (first regional, then sphere and directly sphere) but still don't suggested. My site has pr 4, supports 3 language (one English), is safe and everything is ok. ( www.e-bookland.ge ) what might be problem?